Balcony Releasing presents a Mosaic Films production, a film by Aaron Wolf ; a co-production of Mosaic Films Incorporated and the Independent Television Service (ITVS) with funding provided by The Corporation for Public Broadcasting ; co-produced by Ian Cheney, Curt Ellis ; produced and directed by Aaron Woolf
the Pennsylvania State University PCR Films in the Behavioral Sciences ; [presented by] the New York Zoological Society, the Pennsylvania State University, the National Science Foundation ; written by George B. Schaller ; produced by the Pennsylvania State University